Which equation can be solved to find one of the missing side lengths in the triangle? сos(60)=12/a cos(60)=12/b cos(60)=a/b cos(60)=a/12

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.